J/A+A/480/79ivo://CDS.VizieR/J/A+A/480/79doi:10.26093/cds/vizier.34800079CDSBragaglia A.Sestito P.Villanova S.Carretta E.Randich S.Tosi M.2017-06-27T06:38:54Z2008-04-23T20:34:48ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fropen-star-clustersgiant-starsline-intensitieschemical-abundancesTo constrain the formation and chemical evolution of the Galactic disk, we surveyed open clusters of different ages, metal contents, and distances form the Galactic centre. We employed FLAMES on VLT-UT2 to collect UVES spectra of five to ten giant stars in each of the selected clusters, and used them to derive the iron abundance and the detailed chemical composition. Equivalent widths were measured and abundance analysis was performed using the MOOG code and Kurucz model atmospheres on all stars accepted as cluster member on the basis of their radial velocity. We derived the atmospheric parameters and the abundance of Fe for NGC 2324 and NGC 2477 (average [Fe/H]=-0.17 with rms 0.05dex, and +0.07 with rms 0.03dex, respectively), two clusters never analyzed using high resolution spectroscopy. We also derived the abundances of Mg, Al, Ca, Si, Ti, Cr, Ni, and Ba for these two clusters and for NGC 2660, NGC 3960, and Berkeley 32, whose atmospheric parameters and metallicities were measured in a previous paper. We determined the reddening values for the five clusters, based on the spectroscopically determined temperatures, literature photometry, and a colour-temperature relation. All clusters show solar-scaled abundances for alpha- and Fe-peak elements, while [Na/Fe] appears slightly enhances and and [Ba/Fe] significantly enhanced. Our findings were compared to thin-disk stars and other open clusters, and no significant deviation from the standard behavior was found.2008A&A...480...79Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/480/79CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/299/834 : Berkeley 21 BVI photometry (Tosi+, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/480/79https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/480/79http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/480/79https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/480/79https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/480/79http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/480/79GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/480/79/stars (List of stars observed)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/480/79/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/480/79/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/480/79/stars?GETtext/xml+votable180.050000true130.651875-47.20222220.0055555555555555566/22130 22237 22239 37867 37971 39356https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/480/79?format=asciiOpticaldefaultJ/A+A/480/79/starsList of stars observedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharStarStar name in the clustermeta.id;meta.maincharprimaryRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainNameOriginal name in the paper (cluster-star)meta.idcharSNameSimbad name (1)meta.idcharSName2Second Simbad namemeta.idchar[Na/Fe]LTELTE abundance [Na/Fe]phys.abundfloat[Na/Fe]NLTENLTE abundance [Na/Fe]phys.abundfloate_[Na/Fe]LTErms uncertainty on [Na/Fe]LTE and [Na/Fe]NLTEstat.error;phys.abundfloat[Si/Fe]Abundance [Si/Fe]phys.abundfloate_[Si/Fe]rms uncertainty on [Si/Fe]stat.error;phys.abundfloat[Ca/Fe]Abundance [Ca/Fe]phys.abundfloate_[Ca/Fe]rms uncertainty on [Ca/Fe]stat.error;phys.abundfloat[TiI/Fe]Abundance [Ti/Fe]Iphys.abundfloate_[TiI/Fe]rms uncertainty on [TiI/Fe]stat.error;phys.abundfloat[TiII/Fe]Abundance [Ti/Fe]IIphys.abundfloate_[TiII/Fe]rms uncertainty on [TiII/Fe]stat.error;phys.abundfloat[CrI/Fe]Abundance [Cr/Fe]Iphys.abundfloate_[CrI/Fe]rms uncertainty on [CrI/Fe]stat.error;phys.abundfloat[CrII/Fe]Abundance [Cr/Fe]IIphys.abundfloate_[CrII/Fe]rms uncertainty on [CrII/Fe]stat.error;phys.abundfloat[Ni/Fe]Abundance [Ni/Fe]phys.abundfloate_[Ni/Fe]rms uncertainty on [Ni/Fe]stat.error;phys.abundfloat[Ba/Fe]Abundance [Ba/Fe]phys.abundfloate_[Ba/Fe]rms uncertainty on [Ba/Fe]stat.error;phys.abundfloatJ/A+A/480/79/table14Line-by-line abundances for Mg and AlrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharStarStar name in the clustermeta.id;meta.maincharElElement (Al or Mg)phys.atmol.elementcharlambdaWavelength of line0.1nmem.wl;spect.linedoubleLogNSunLogN(X) for this element in Sunphys.abundfloatLogN(X)? LogN(X) for this element in the starphys.abundfloatnullable[X/Fe]? Abundance [X/Fe] for this element in the starphys.abundfloatnullableJ/A+A/480/79/ewEquivalent widths (tables 6-10 of the paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharStarStar name in the clustermeta.id;meta.maincharlambdaWavelength0.1nmem.wlfloatElElement (1)phys.atmol.elementfloatEWEquivalent width for the star (m{AA})0.1pmspect.line.eqWidthfloatJ/A+A/480/79/table4WL, EP, log(gf), source of dampingrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonAtom and ionization stagephys.atmol.ionStagecharlambdaWavelength0.1nmem.wldoubleEPEnergy potentialphys.energy;phys.atmol.levelfloatloggfOscillator strengthphys.atmol.oscStrengthfloatFlag[1/4] Flag indicating source of damping (1)meta.ref;pos.frameint